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Convert int to varchar Posted by:tan deesmond Date: May 18, 2007 03:24AM I'm trying to do a looping to create large amout of user. DECLARE v1 INT DEFAULT 0; WHILE v1 < 10000 DO INSERT INTO account VALUES ("user"+v1,"password","abc@email.com");...
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plumgreen int转日期 convert 日期转换成字符串,使用CONVERT:CONVERT(data_type[(length)],expression[,style])convert(varchar(10),字段名,转换格式)CONVERT(nvarchar(10),count_time,121)CONVERT为日期转换函数,一般就是在时间类型(datetime,smalldatetime)与字符串类
+---+ |CAST('3.35'AS signed) | +---+ | 3 | +---+ 1 rowinset 像上面例子一样,将varchar 转为int 用 cast(a as signed),其中a为varchar类型的字符串。
单价,利润等应该是数值类型吧,为什么还要用''把它包起来呢.一般来说,insert语句中如果要插入字符数据要使用'',数值直接写上去不就得了.insert into tb_kucun (药品ID,药品名,通用名,规格,单位,数量,采购单价,销售单价,利润,厂家,批准文号,药品分类,有效期,入库日期）values('ID','药品名','通用...
int、smallint 或 tinyint char * varchar * nchar E nvarchar E money、smallmoney、numeric、decimal、float 或 real char E varchar E nchar E nvarchar E * = 结果长度太短而无法显示。E = 因为结果长度太短无法显示而返回错误。 SQL Server 仅保证往返转换(即从原始数据类型进行转换后又返回原始数据类型的...
Msg 245, Level 16, State 1, Line 3 Conversion failed when converting the varchar value ' is not a string.' to data type int. 为了计算表达式 @notastring + ' is not a string.',SQL Server 需要先遵循数据类型优先级的规则来完成隐式转换,然后才能计算表达式的结果。 由于 int 的优先级高于 varc...
try this: DECLARE v1 INT DEFAULT 0; WHILE v1 < 10000 DO INSERT INTO account VALUES ("user"+CAST(v1 AS CHAR),"password","abc@email.com"); SET v1 = v1 + 1; END WHILE; Subject Written By Posted Convert int to varchar tan deesmond ...